Display device



S. B. GRIFFIN.

DISPLAY DEVICE. APPLICATION FILED NOV. 22, 1920.

1,390,699. Patentedfiept- 13, 1921.

A14 ATTORNEY UNITED STATES PATENT OFFICE.

SYDNEY 1B.- GRIFI'IN, 0F MAHARONECK, NEW YORK, .ASSIGNOR TO 01 NEW YORK, N. Y.

'r. FRED moons,

DISPLAY nnvrcn.

Specification of Letters latent.

Patented Sept. 13, 1921.

Application filed November 22, 1920. Serial No. 425,638.

T 0 all whom it may concern:

Be it known that I, SYDNEY B. GRIFFIN a citizen of the United States, residing at amaroneck, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Display Devices, fully described and represented in the following specification and the accompanying drawing, forming a part of the same.

This invention relates to display devices and is directed particularly to a folding support for such devices.

In devices heretofore made for displaying posters and like articles, a folding thrust piece has been provided to hold the poster flat. In such devices the thrust piece when extended in a straight line across the back of the poster to exert an outward thrust upon parts attached to the edges of the poster has been in a condition of unstable equilibrium so that it has been necessary to provide frictional or other means to prevent relative angular movement of the members of the thrust piece.

In accordance with the present invention,

the thrust piece is provided with a prop which may be folded compactly with it, and which, when extended serves not only as a support for the thrust piece and the poster, but also as a means for positively locking the extended members of the thrust piece against relative angular movement. All danger of accidental displacement of the thrust piece when the device is in display position is therefore eliminated.

In order that the invention may clearly be understood, I will describe in detail the specific embodiment of it shown in the accompanying drawings, in which:

Figure 1 is a side elevation of the device in display position;

Fig. 2 is a back elevation of the device in display position showing in dotted lines a position which the thrust iece and prop assume when they are being olded;

Fig. 3 is a top View showing the thrust piece and prop in folded position; and

Fig. 4 is a detailed perspectiveyiew showing the locking of the thrust piece by the prop when the parts are in display position.

In the embodiment shown in the drawings, rigid edge pieces 11, 12 are attached to the rear 'side of opposite ends of a poster 10 upon the front side of which display matter is printed or otherwise displayed. thrust piece comprises two thrust members 13, 14 whose inner ends are overlapped and pivotally attached together by a rivet 15. I he'outer end of the thrust piece 13 is pivotally attached to the edge member 11 by a rivet 16 while the outer end of the thrust member 14 15 adapted to engage a socket 17 in the inner side of the edge member 12.

The prop 20 is pivotally attached to one edge of the lower thrust member 14 by means of a rlvet 21 which is'spaced from the upper end 22 of the prop 20. The inner end of the thrust member 13 is wider than the inner end of the thrust member 1 1 and contains a recess 23 in the part of it which is not covered by the end of the thrust memher 1 1 when the thrust members are extended in a stralght line. Nhen the lower end of the prop 20 1S moved outwardly from the thrust plece so that the prop may serve as a support for the poster, the upper end 22 of the prop enters the recess 23 and locks the thrust members 13, 14 against relative angular movement.

In using the device described, when the poster is to be displayed the thrust piece is extended substantially perpendicular from the edge member 11 to which it is pivoted and the two members 13, 14 of the thrust iece are extended nearly straight. The ower end of the prop 20 is moved slightly away from the outer end of the thrust piece 14, which may be done'without bringing the upper end 22 of the prop into engagement with the thrust member 13. The outer end of the thrust member 14 is then inserted in the socket 17 in the edge member 12, while the lower endof the prop 2O lies against the outer side of the edge member 12 and so does not interfere with inserting the end of the thrust member in the socket. The pivot point of the two thrust members is then moved sidewise until the two members are extended in a strai ht line as shown in solid lines in Fig. 2. his movement results in causing an outward thrust on the edge members 11, 12, drawing the poster 10 flat. The

The

the upper end 22 with the sides of the recess 23 looks the thrust members 13, 14 against relative angular movement and thus prevents accidental displacement of the thrust 1ece. P When it is desired to roll the poster for transportation, the prop 20 is first folded inwardly until it touches the back of the edge piece 12. This disengages the upper end 22 of the prop from the recess 23 so that the pivot point of the thrust members may be moved sidewise, drawlng the lower end of the thrust member 14 from the socket 17. The prop 20 is then folded a ainst the edge of the thrust member 14 and t e thrust members 13 and 14 are turned about the pivots 16' and 15 until they lie flat against the back of the edge piece 11 in the position shown in Fig. 3. The poster 10 is then rolled about the edge piece 11, the thrust place and the prop which have been folded compactly together so that the poster and the attachment form a small package which may be easily transported.

Many modifications may be made 1n the embodiment described without departing from my invention. Thus the pivotal connection between the outer end of the thrust piece 13 and the edge member 11 may be changed to a socket engagement similar to that shown in connection with the thrust member 14; or other means may be employed for utilizing the outward thrust of the folding thrust piece to stretch the poster flat. The prop may be attached to'either of the thrust members so as to engage the other when moved into position to support the poster. The device may be used for the display of pictures, photographs and printed matter of all kinds, all of which are intended to beincluded in the term poster in the claims following.

What is claimed is:

1. In a folding support for posters and the like, the combination with an extensible thrust piece adapted to hold the poster flat when extended, of a prop pivotally secured to the thrust piece and arranged to lock the members of the thrust piece to each other, in extended position, when the prop is inclined to the thrust piece to serve as a support for the poster.

2. In a folding support for posters and the like, the combination with an extensible thrust piece comprising two pivotally con- .nected thrust members adapted to hold the poster flat when extended in a straight line, of a prop pivotally secured to one of said thrust members and arranged to engage the other of said thrust members and lock the two thrust members against relative angular movement when the prop is inclined to the thrust piece to serve as a support for the poster.

3. In a folding support for posters and the like, the combination of an extensible thrust piece, comprising two pivotally connected thrust members adapted to hold the poster flat when extended in a straight line, one of said thrust members containing a recess, and a prop pivotally attached to the other of said thrust pieces and so located that its upper end enters, and engages the bottom and sides of, said recess when the prop is inclined to the thrust piece to serve as a support for the poster.

4. In a folding support for posters and the like, the combination of an extensible thrust piece, comprising two thrust members connected by a pivot and adapted to hold the poster flat when extended in a straight line, and a prop attached to one of said thrust members by a pivot disposed at an angle to the pivot by which said thrust members are connected together, and so located that said )rop engages the other of said thrust mem ers when the prop is inclined to said thrust piece to serve as a support for the poster.

5. In a folding support for posters and the like, the combination of an extensible thrust piece, comprising two thrust members connected by a pivot and adapted to hold the poster fiat when extended in a straight line, one of said thrust members containing a recess, and a prop attached to the other of said thrust members by a pivot spaced from the upper end of the prop and disposed at an angle to the pivot by which said thrust members are connected together, and so located that the upper end of said prop enters said recess when the prop is inclined to said thrust piece to serve as a support for the poster.

6. In a folding support for posters and the like, the combination of an extensible thrust piece, comprising thrust members overlapped at their inner ends and pivoted together and adapted to hold the poster flat when extended in a straight line, the overlapped end of one of said thrust members being wider than that of the other of said thrust members and containin a recess in the portion of its surface whic 1 is not covered by the other thrust member when the thrust members are extended inastraight line, and a prop secured to the edge of the other of said thrust members by a pivot so located that the upper end of said prop enters said recess when said prop is inclined to the thrust piece to serve as a support for the poster.

7. A folding support for posters and the like, comprising edge pieces attached along opposite edges of the poster, an extensible thrust piece pivotally connected to one of said edge pieces and comprising two members pivotally connected together, said thrust piece being adapted to fold against the edge piece to which it is pivoted, and,

a prop pivotally connected to one of the members of said thrust piece and adapted to fold against said member when the thrust piece is folded against said edge piece.

8. A folding support for posters and the like, comprising edge pieces attached along opposite edges of the poster, an extensible thrust piece pivotally connected to one of said edge pieces and comprising two members pivotally connected together, said thrust piece being adapted to fold against the edge piece to which it is pivoted, and a prop pivoted to the edge of one of the members of the thrust piece and adapted to lie against the edge of said member when the thrust piece is folded against said edge piece.

In testimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

SYDNEY B. GRIFFIN. Witnesses:

" Romnrr W. BYERL'I,

A. Jiumomr. 

